From 05b6c0348e0b4deaad756c9c1acac90c44bc748b Mon Sep 17 00:00:00 2001 From: "Paul S. Owen" Date: Sun, 14 Jul 2002 14:32:45 +0000 Subject: [PATCH] Renamed again git-svn-id: file:///svn/phpbb/trunk@2661 89ea8834-ac86-4346-8a33-228a782c2dd0 --- phpBB/includes/session.php | 532 +++++++++++++++++++++++++++++++++++++ 1 file changed, 532 insertions(+) create mode 100644 phpBB/includes/session.php diff --git a/phpBB/includes/session.php b/phpBB/includes/session.php new file mode 100644 index 0000000000..fc173e1127 --- /dev/null +++ b/phpBB/includes/session.php @@ -0,0 +1,532 @@ +load) = explode(' ', $load[0]); + + if ( $this->load > $board_config['limit_load'] ) + { + message_die(MESSAGE, 'Board_unavailable'); + } + } + } + + if ( !empty($session_id) ) + { + // + // session_id exists so go ahead and attempt to grab all data in preparation + // + $sql = "SELECT u.*, s.* + FROM " . SESSIONS_TABLE . " s, " . USERS_TABLE . " u + WHERE s.session_id = '$session_id' + AND u.user_id = s.session_user_id"; + $result = $db->sql_query($sql); + + $this->userdata = $db->sql_fetchrow($result); + + // + // Did the session exist in the DB? + // + if ( isset($this->userdata['user_id']) ) + { + // + // Do not check IP assuming equivalence, if IPv4 we'll check only first 24 + // bits ... I've been told (by vHiker) this should alleviate problems with + // load balanced et al proxies while retaining some reliance on IP security. + // + $ip_check_s = explode('.', $this->userdata['session_ip']); + $ip_check_u = explode('.', $user_ip); + + if ( $ip_check_s[0].'.'.$ip_check_s[1].'.'.$ip_check_s[2] == $ip_check_u[0].'.'.$ip_check_u[1].'.'.$ip_check_u[2] ) + { + $SID = '?sid=' . ( ( $sessionmethod == SESSION_METHOD_GET ) ? $session_id : '' ); + + // + // Only update session DB a minute or so after last update or if page changes + // + if ( ( $current_time - $this->userdata['session_time'] > 60 || $this->userdata['session_page'] != $this_page ) && $update ) + { + $sql = "UPDATE " . SESSIONS_TABLE . " + SET session_time = $current_time, session_page = '$this_page' + WHERE session_id = '" . $this->userdata['session_id'] . "'"; + $db->sql_query($sql); + + // + // Garbage collection ... remove old sessions updating user information + // if necessary + // + if ( $current_time - $board_config['session_gc'] > $board_config['session_last_gc'] ) + { + $this->gc($current_time); + } + + setcookie($board_config['cookie_name'] . '_data', serialize($sessiondata), $current_time + 31536000, $board_config['cookie_path'], $board_config['cookie_domain'], $board_config['cookie_secure']); + setcookie($board_config['cookie_name'] . '_sid', $session_id, 0, $board_config['cookie_path'], $board_config['cookie_domain'], $board_config['cookie_secure']); + } + + return $this->userdata; + } + } + } + + // + // If we reach here then no (valid) session exists. So we'll create a new one, + // using the cookie user_id if available to pull basic user prefs. + // + $autologin = ( isset($sessiondata['autologinid']) ) ? $sessiondata['autologinid'] : ''; + $user_id = ( isset($sessiondata['userid']) ) ? $sessiondata['userid'] : ANONYMOUS; + + $this->userdata = $this->create($session_id, $user_id, $autologin, $this_page, $session_browser); + + return $this->userdata; + } + + function create(&$session_id, &$user_id, &$autologin, &$this_page, &$session_browser) + { + global $SID, $db, $board_config, $user_ip; + + $sessiondata = array(); + $current_time = time(); + + // + // Limit connections (for MySQL) or 5 minute sessions (for other DB's) + // + switch ( SQL_LAYER ) + { + case 'mysql': + case 'mysql4': + $sql = "SHOW PROCESSLIST"; + break; + default: + $sql = "SELECT COUNT(*) AS sessions + FROM " . SESSIONS_TABLE . " + WHERE session_time >= " . ( $current_time - 3600 ); + } + $result = $db->sql_query($sql); + + switch ( SQL_LAYER ) + { + case 'mysql': + case 'mysql4': + $current_sessions = 0; + while ( $db->sql_fetchrow($result) ) $current_sessions++; + break; + default: + $row = $db->sql_fetchrow[$result]; + $current_sessions = ( isset($row['sessions']) ) ? $row['sessions'] : 0; + } + + if ( intval($board_config['active_sessions']) && $current_sessions > intval($board_config['active_sessions']) ) + { + message_die(GENERAL_MESSAGE, 'Board_unavailable', 'Information'); + } + + $sql = "SELECT * + FROM " . USERS_TABLE . " + WHERE user_id = $user_id"; + $result = $db->sql_query($sql); + + $this->userdata = $db->sql_fetchrow($result); + + // + // Check autologin request, is it valid? + // + if ( $this->userdata['user_password'] != $autologin || !$this->userdata['user_active'] || $user_id == ANONYMOUS ) + { + $autologin = ''; + $this->userdata['user_id'] = $user_id = ANONYMOUS; + } + + $user_ip_parts = explode('.', $user_ip); + + $sql = "SELECT ban_ip, ban_userid, ban_email + FROM " . BANLIST_TABLE . " + WHERE ban_ip IN ( + '" . $user_ip_parts[0] . ".', + '" . $user_ip_parts[0] . "." . $user_ip_parts[1] . ".', + '" . $user_ip_parts[0] . "." . $user_ip_parts[1] . "." . $user_ip_parts[2] . ".', + '" . $user_ip_parts[0] . "." . $user_ip_parts[1] . "." . $user_ip_parts[2] . "." . $user_ip_parts[3] . "') + OR ban_userid = " . $this->userdata['user_id']; + if ( $user_id != ANONYMOUS ) + { + $sql .= " OR ban_email LIKE '" . str_replace('\\\'', '\\\'\\\'', $this->userdata['user_email']) . "' + OR ban_email LIKE '" . substr(str_replace('\\\'', '\\\'\\\'', $this->userdata['user_email']), strpos(str_replace('\\\'', '\\\'\\\'', $this->userdata['user_email']), '@')) . "'"; + } + $result = $db->sql_query($sql); + + if ( $ban_info = $db->sql_fetchrow($result) ) + { + if ( $ban_info['ban_ip'] || $ban_info['ban_userid'] || $ban_info['ban_email'] ) + { + message_die(MESSAGE, 'You_been_banned'); + } + } + + // + // Create or update the session + // + $db->sql_return_on_error(true); + + $sql = "UPDATE " . SESSIONS_TABLE . " + SET session_user_id = $user_id, session_start = $current_time, session_time = $current_time, session_browser = '$session_browser', session_page = '$this_page' + WHERE session_id = '$session_id'"; + if ( !$db->sql_query($sql) || !$db->sql_affectedrows() ) + { + $db->sql_return_on_error(false); + $session_id = md5(uniqid($user_ip)); + + $sql = "INSERT INTO " . SESSIONS_TABLE . " + (session_id, session_user_id, session_start, session_time, session_ip, session_browser, session_page) + VALUES ('$session_id', $user_id, $current_time, $current_time, '$user_ip', '$session_browser', '$this_page')"; + $db->sql_query($sql); + } + $db->sql_return_on_error(false); + + $SID = '?sid=' . $session_id; + + $sessiondata['autologinid'] = ( $autologin && $user_id != ANONYMOUS ) ? $autologin : ''; + $sessiondata['userid'] = $user_id; + + setcookie($board_config['cookie_name'] . '_data', serialize($sessiondata), $current_time + 31536000, $board_config['cookie_path'], $board_config['cookie_domain'], $board_config['cookie_secure']); + setcookie($board_config['cookie_name'] . '_sid', $session_id, 0, $board_config['cookie_path'], $board_config['cookie_domain'], $board_config['cookie_secure']); + + $this->userdata['session_id'] = $session_id; + + return $this->userdata; + } + + function destroy(&$userdata) + { + global $SID, $db, $board_config, $user_ip; + global $HTTP_SERVER_VARS, $HTTP_ENV_VARS, $HTTP_COOKIE_VARS, $HTTP_GET_VARS; + + if ( isset($HTTP_COOKIE_VARS[$board_config['cookie_name'] . '_sid']) ) + { + $session_id = ( isset($HTTP_COOKIE_VARS[$board_config['cookie_name'] . '_sid']) ) ? $HTTP_COOKIE_VARS[$board_config['cookie_name'] . '_sid'] : ''; + } + else + { + $session_id = ( isset($HTTP_GET_VARS['sid']) ) ? $HTTP_GET_VARS['sid'] : ''; + } + + $sessiondata = array(); + $current_time = time(); + + // + // Delete existing session, update last visit info first! + // + $sql = "UPDATE " . USERS_TABLE . " + SET user_lastvisit = " . $userdata['session_time'] . ", user_session_page = '" . $userdata['session_page'] . "' + WHERE user_id = " . $userdata['user_id']; + $db->sql_query($sql); + + $sql = "DELETE FROM " . SESSIONS_TABLE . " + WHERE session_id = '" . $userdata['session_id'] . "' + AND session_user_id = " . $userdata['user_id']; + $db->sql_query($sql); + + $SID = '?sid='; + + setcookie($board_config['cookie_name'] . '_data', '', $current_time - 31536000, $board_config['cookie_path'], $board_config['cookie_domain'], $board_config['cookie_secure']); + setcookie($board_config['cookie_name'] . '_sid', '', $current_time - 31536000, $board_config['cookie_path'], $board_config['cookie_domain'], $board_config['cookie_secure']); + + return true; + } + + function gc(&$current_time) + { + global $db, $board_config, $user_ip; + + $sql = "SELECT * + FROM " . SESSIONS_TABLE . " + WHERE session_time < " . ( $current_time - $board_config['session_length'] ); + $result = $db->sql_query($sql); + + $del_session_id = ''; + while ( $row = $db->sql_fetchrow($result) ) + { + if ( $row['user_id'] != ANONYMOUS ) + { + $sql = "UPDATE " . USERS_TABLE . " + SET user_lastvisit = " . $row['session_time'] . ", user_session_page = '" . $row['session_page'] . "' + WHERE user_id = " . $row['session_user_id']; + $db->sql_query($sql); + } + + $del_session_id .= ( ( $del_session_id != '' ) ? ', ' : '' ) . '\'' . $row['session_id'] . '\''; + } + + if ( $del_session_id != '' ) + { + // + // Delete expired sessions + // + $sql = "DELETE FROM " . SESSIONS_TABLE . " + WHERE session_id IN ($del_session_id)"; + $db->sql_query($sql); + } + + $sql = "UPDATE " . CONFIG_TABLE . " + SET config_value = '$current_time' + WHERE config_name = 'session_last_gc'"; + $db->sql_query($sql); + + return; + } + + function get_cookies() + { + } + + function set_cookies() + { + } + + function configure($userdata, $lang_set = false) + { + global $db, $template, $lang, $board_config, $theme, $images; + global $phpEx, $phpbb_root_path; + + if ( $userdata['user_id'] != ANONYMOUS ) + { + $board_config['default_lang'] = $userdata['user_lang']; + $board_config['default_dateformat'] = $userdata['user_dateformat']; + $board_config['board_timezone'] = $userdata['user_timezone']; + } + + if ( !file_exists($phpbb_root_path . 'language/lang_' . $board_config['default_lang'] . '/lang_main.' . $phpEx) ) + { + $board_config['default_lang'] = 'english'; + } + + include($phpbb_root_path . 'language/lang_' . $board_config['default_lang'] . '/lang_main.' . $phpEx); + + if ( defined('IN_ADMIN') ) + { + if ( !file_exists($phpbb_root_path . 'language/lang_' . $board_config['default_lang'] . '/lang_admin.'.$phpEx) ) + { + $board_config['default_lang'] = 'english'; + } + + include($phpbb_root_path . 'language/lang_' . $board_config['default_lang'] . '/lang_admin.' . $phpEx); + } + + // + // Set up style + // + $style = ( !$board_config['override_user_style'] && $userdata['user_id'] != ANONYMOUS ) ? $userdata['user_style'] : $board_config['default_style']; + + $sql = "SELECT t.template_path, t.poll_length, t.pm_box_length, c.css_data, c.css_external, i.* + FROM " . STYLES_TABLE . " s, " . STYLES_TPL_TABLE . " t, " . STYLES_CSS_TABLE . " c, " . STYLES_IMAGE_TABLE . " i + WHERE s.style_id = $style + AND t.template_id = s.template_id + AND c.theme_id = s.style_id + AND i.imageset_id = s.imageset_id"; + $result = $db->sql_query($sql); + + if ( !($theme = $db->sql_fetchrow($result)) ) + { + message_die(ERROR, 'Could not get style data [ id ' . $style . ' ]'); + } + + if ( $template = new Template($theme['template_path']) ) + { + $img_lang = ( file_exists('imageset/' . $theme['imageset_path'] . '/lang_' . $board_config['default_lang']) ) ? $board_config['default_lang'] : 'english'; + + $i10n = array('post_new', 'post_locked', 'post_pm', 'reply_new', 'reply_pm', 'reply_locked', 'icon_quote', 'icon_edit', 'icon_search', 'icon_profile', 'icon_pm', 'icon_email', 'icon_www', 'icon_icq', 'icon_aim', 'icon_yim', 'icon_msnm', 'icon_delete', 'icon_ip', 'icon_no_email', 'icon_no_www', 'icon_no_icq', 'icon_no_aim', 'icon_no_yim', 'icon_no_msnm'); + + for($i = 0; $i < sizeof($i10n); $i++) + { + $theme[$i10n[$i]] = str_replace('{LANG}', 'lang_' . $img_lang, $theme[$i10n[$i]]); + } + } + + return; + } +} + +// +// Note this doesn't use the prefetch at present and is very +// incomplete ... purely for testing ... will be keeping my +// eye of 'other products' to ensure these things don't +// mysteriously appear elsewhere, think up your own solutions! +// +class auth { + + var $acl; + var $where_sql = ''; + + function auth($mode, $userdata, $forum_id = false) + { + global $db; + + switch( $mode ) + { + case 'list': + $and_sql = "AND ( ao.auth_option LIKE 'list' OR ao.auth_type LIKE 'admin' )"; + break; + case 'forum': + $and_sql = "AND ( ( au.forum_id = $forum_id ) OR ( au.forum_id <> $forum_id AND ( ao.auth_option LIKE 'list' OR ao.auth_type LIKE 'mod' OR ao.auth_type LIKE 'admin' ) ) )"; + break; + case 'admin': + $and_sql = "AND ( ao.auth_type LIKE 'admin' )"; + break; + case 'listmod': + $and_sql = "AND ( ao.auth_option LIKE 'list' OR ao.auth_type LIKE 'mod' OR ao.auth_type LIKE 'admin' )"; + break; + case 'all': + $and_sql = ''; + break; + } + + $sql = "SELECT au.forum_id, au.auth_allow_deny, ao.auth_type, ao.auth_option + FROM " . ACL_PREFETCH_TABLE . " au, " . ACL_OPTIONS_TABLE . " ao + WHERE au.user_id = " . $userdata['user_id'] . " + AND ao.auth_option_id = au.auth_option_id + $and_sql"; + $result = $db->sql_query($sql); + + if ( $row = $db->sql_fetchrow($result) ) + { + do + { + $this->acl[$row['forum_id']][$row['auth_type']][$row['auth_option']] = $row['auth_allow_deny']; + } + while ( $row = $db->sql_fetchrow($result) ); + } + $db->sql_freeresult($result); + + return; + } + + function get_acl($forum_id = false, $auth_main = false, $auth_type = false) + { + if ( $auth_main && $auth_type ) + { + return $this->acl[$forum_id][$auth_main][$auth_type]; + } + else if ( !$auth_type && is_array($this->acl[$forum_id][$auth_main]) ) + { + return ( array_sum($this->acl[$forum_id][$auth_main]) ) ? true : false; + } + + return $this->acl[$forum_id]; + } + + function get_acl_admin($auth_type = false) + { + if ( $auth_type ) + { + return $this->acl[0]['admin'][$auth_type]; + } + else if ( !$auth_type && is_array($this->acl[0]['admin']) ) + { + return ( array_sum($this->acl[0]['admin']) ) ? true : false; + } + + return false; + } + + function set_acl($ug_data, $forum_id, $auth_list = false, $dependencies = false) + { + global $db; + + $dependencies = array_merge($dependencies, array( + 'admin' => 'mod', + 'mod' => 'forum') + ); + } +} + +// +// Centralised login? May stay, may not ... depends if needed +// +function login($username, $password, $autologin = false) +{ + global $SID, $db, $board_config, $lang, $user_ip, $userdata; + global $HTTP_SERVER_VARS, $HTTP_ENV_VARS; + + $this_page = ( !empty($HTTP_SERVER_VARS['PHP_SELF']) ) ? $HTTP_SERVER_VARS['PHP_SELF'] : $HTTP_ENV_VARS['PHP_SELF']; + $this_page .= '&' . ( ( !empty($HTTP_SERVER_VARS['QUERY_STRING']) ) ? $HTTP_SERVER_VARS['QUERY_STRING'] : $HTTP_ENV_VARS['QUERY_STRING'] ); + $session_browser = ( !empty($HTTP_SERVER_VARS['HTTP_USER_AGENT']) ) ? $HTTP_SERVER_VARS['HTTP_USER_AGENT'] : $HTTP_ENV_VARS['HTTP_USER_AGENT']; + + $sql = "SELECT user_id, username, user_password, user_email, user_active, user_level + FROM " . USERS_TABLE . " + WHERE username = '" . str_replace("\'", "''", $username) . "'"; + $result = $db->sql_query($sql); + + if ( $row = $db->sql_fetchrow($result) ) + { + if ( $board_config['ldap_enable'] && extension_loaded('ldap') ) + { + if ( !($ldap_id = @ldap_connect($board_config['ldap_hostname'])) ) + { + @ldap_unbind($ldap_id); + } + } + else + { + if ( md5($password) == $row['user_password'] && $row['user_active'] ) + { + $autologin = ( isset($autologin) ) ? md5($password) : ''; + $userdata = $session->create($session_id, $user_id, $autologin, $this_page, $session_browser); + } + } + } + + return $result; +} + +?> \ No newline at end of file